Well-drilling apparatus.



m. 811,905. PXTENTBD FEB. a, 1906 1.011516 5; E. 110921.21. WELL DRILLING APPARATUS.

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PATENTS?) FEB. 6, 1906. 1;. 0mm 4; 110mm. WELL 3312mm manna VAYPLIULTIGX TILED-[A111, 1904.

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to engage the flanges or rojections on the hub of the pulley or she t 7 similar to the fianges23 on the pulle 12. An operatingarm is provided wit a yoke/ adapted to be connected with the pins i' upon the ringsections28 2Q, bolted about the clutch 21. These ring-sections 28 2" are preferably set in a. roove provided in the circumference of the c utch member 2-1, as shown best 'in F ig. 3. The operating-arm 25 is connected with a shipping-lever 30, preferably arranged .the pullev 12. 3O

tools has been lowered to the requisite'depth for drilling, the lever is thrown to the intermediate-position, so that the clutch 21 is out ofengagement with both the pulley 7 and The walking-beam 1s then connected to the wrist-pin (i in the ordinary manner and the string of tools connected with the walking-.I-eam.

to raise the same fron1 t.hc well and use the sand-pump or bailer all that is necessary is to disconnect'the walking-beam, throwthe le ver 30 Ibo-the position of I i a2,and raise, the tools out of the well, then throw the-lever 30 I into the intermediate position and operate the sand-pump line or reel in the ordinary manner. It is thus seen that all necessity for throwing either the belt 13 or 8 off the pulleys at any time is obviated, and, as ind rilling oil-wells frequent change of tools IS necessary,a very large saving oftime and labor is thus secured.

The bearing for the outer end of the shaft 1'? is ina standard 35, while the inner endof the shaft 17- has its bearing in an arm 36, p v-- died in a standard 37, so that the pulley 18 me be thrown into or out of frictional contact with the periphery of the band-wheel. If desired, any suitable means may be employed in connection with the arm or lever 36 and extended up into the main room B of the derrick.

'Having thus described our invention, we

- claim as new and desire to secure by Letters 1. 'A well-drilling rig com rising a and- Wheel, a shaft therefor, piil eys or sheaves loose thereon, a clutch on the shaft adapted to revolve with said shaft, means for operatively connecting said clutch with either of 1d: pulleyqn bull wheel, a ropc connecting 'l lhe drillin tools may then be operated, and when it is esired,

' by said shaft, 9. shippin casing wheels with theirr'espective pulleys onsaid shaft, and means for riving said bandwheel.

3...A! 'well-drilling rig comprisin a bandwheel, a shaft \yhereon the same is igxed pulleys looseon said shhft, means for operatively connecting saillpulleys to said shaft as desired means [or connecting awalkingbeam to said shaft,a bull-wheel a calf or casing wheel, means-operativel connecting said bull and calf wheels with t eirrespeetive loosepulleys,

and means for-driving said band-wheel.

4. A well-drilling rig comprisin a bandxvheel, a shaft whereonthe sameis xed, pulleys loose on said shaft, means for operzttively connecting said pulleys to said shaft as desired, means for connecting a wallring-bam to said shaft, 0. bull-wheel, acalfor casing wheel means operativel connecting said bull and calf wheelswith t eir respectiveloose pulleys, a sand-reel driven from said band-wheel, and means lor drivin the band-wheel.

5. Awell-dril ing ri comprising a shaft, loose pulleys on said s aft, means forrotating said shaft, a bull-wheel, a calf-wheel, ropes connectin wheel respectiv y with their respective loose pulleys, and means carried b said shaft whereby either of said loose p leys maybe 0 eratively'connected with said 3 aft to r0- tate therewith.

G. A welldrilling ri loose pulleys on said 3 aft, a clutch earrie lev'er for operating said clutch to on age eit er of said pulleys, a calf-wheel, a bu wheol, means 0 eratively connecting said calf and said bull w ieels with their respective loose pulleys. and means for drivin said shaft. i a

7. 1E well-drilling rig'comprisin a bandwheel, a shaft therefor, a loose pu ley thereon, a, clutch carried by said shaft forengaging said loose pullc a calf-wheel, a rope or heltconnecting sair calf-wheel and loose pulley, a bull-wheel, means for d riving said'bulh whe'el from said shaft, and means for operat ing said clutch. 1

In testimony whereof we have hereunto set our hands, at liosAngelcs, California, this 21st day of May, 1904.

ALLEN CRAIG. EDWARD DOUBLE. In presence of .Fnnnnmox 0. LYON, Rnm. Ronnars.

said bull-wheeliand calfcomprising a shaft 

